Their answers are exactly the same. One of them ___ from the other.
#62605
A
must copy
B
must have copied
C
should copy
D
should have copied
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When the traffic lights are red, we _______ stop.
#77230
A
should
B
might
C
must
D
may
We _______ work very quickly.
#76098
A
don’t need
B
needn’t to
C
need not to
D
don’t need to